Antibodies

Question 1

()
Proteins secreted by B plasma cells
-one of five Ig classes

Answer 1

immunoglobins
IgM, IgG, IgA, IgE, IgD

Question 2

()
Primary antibody released
Potent agglutinating agent
Readily activates complement

Answer 2

IgM

Question 3

()
75–85% of antibodies in plasma
Form secondary and late primary responses
Crosses placental barrier

Answer 3

IgG

Question 4

() (secretory __)
Found in mucus membranes, saliva, tears, breast milk

Answer 4

IgA

Question 5

()
Active in some allergies and parasitic infections
Causes mast cells and basophils to release histamine

Answer 5

IgE

Question 6

()
Attached to surface of B cells
Functions as B cell receptor

Answer 6

IgD